Home / 28,809.40-39,775.32-23,516.80

Finding the Fourth Proportional to 28,809.40, 39,775.32 and 23,516.80

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Solution

The fourth proportional to 28,809.40, 39,775.32 and 23,516.80 is: 32,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.40 : 39,775.32 = 23,516.80 : x
  2. Step 2: Convert to fraction form
    28,809.40/39,775.32 = 23,516.80/x
  3. Step 3: Cross multiply
    28,809.40x = 39,775.32 × 23,516.80
  4. Step 4: Simplify right side
    28,809.40x = 935,388,245.38
  5. Step 5: Solve for x
    x = 935,388,245.38/28,809.40
  6. Step 6: Final answer
    x = 32,468.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.